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Title: A Parasaurolophus dinosaur during the late Cretaceous period.
Caption: Parasaurolophus is a herbivorous dinosaur belonging to the group known as hadrosaurids. It lived during the late Cretaceous period and was both a biped and quadruped. It is now believed that the crest on its head was used as a sonic weapon, and that a group of these dinosaurs producing sound all at the same time could literally knock a predator off its feet.
Category: PALEONTOLOGY
Credit: Album / Mark Stevenson/Stocktrek Images
Image size: 5376 × 3360 px | 51.7 MB
Print size: 45.5 × 28.4 cm | 2116.5 × 1322.8 in (300 dpi)